Optical Performance Monitoring

Optical Performance Monitoring
Author: Calvin C. K. Chan
Publsiher: Academic Press
Total Pages: 512
Release: 2010-02-11
ISBN 10: 9780080959177
ISBN 13: 0080959172
Language: EN, FR, DE, ES & NL

Optical Performance Monitoring Book Review:

This in-depth, detailed reference presents for the first time a comprehensive treatment of recent advances in optical performance monitoring. Written by leading experts in the field, the book provides an overview of recent developments in the area and the role of OPM in future optical systems and networks. Detailed discussions of various advanced techniques are provided to illustrate their principles. FEATURES: Presents the principles and applications of advanced OPM techniques, together with a comparative evaluation of their effectiveness in monitoring individual parameters, such as optical signal-to-noise ratio, chromatic dispersion, and polarization mode dispersion Explains the principles of the various advanced optical signal processing techniques and their applications in OPM Examines the role and applications of OPM in optical networks, including optical transport networks, coherent optical systems, and long-haul optical transmission systems Discusses the current approaches of OPM in the global standard SDH/SONET This book is ideal for technical professionals and researchers who want to understand and evaluate advanced techniques in OPM and their impact on the practical design of next-generation optical systems and networks. Provides a thorough and detailed discussion of the latest optical performance monitoring (OPM) techniques and their applications, presenting a comparative analysis of each method Contains high-quality technical contributions from leading experts, covering both principles and practical aspects of advanced OPM techniques Addresses challenges and opportunities related to OPM in next-generation reconfigurable optical systems and networks

Optical Fiber Telecommunications VB

Optical Fiber Telecommunications VB
Author: Ivan Kaminow,Tingye Li,Alan E. Willner
Publsiher: Elsevier
Total Pages: 928
Release: 2010-07-28
ISBN 10: 0080569625
ISBN 13: 9780080569628
Language: EN, FR, DE, ES & NL

Optical Fiber Telecommunications VB Book Review:

Optical Fiber Telecommunications V (A&B) is the fifth in a series that has chronicled the progress in the research and development of lightwave communications since the early 1970s. Written by active authorities from academia and industry, this edition not only brings a fresh look to many essential topics but also focuses on network management and services. Using high bandwidth in a cost-effective manner for the development of customer applications is a central theme. This book is ideal for R&D engineers and managers, optical systems implementers, university researchers and students, network operators, and the investment community. Volume (A) is devoted to components and subsystems, including: semiconductor lasers, modulators, photodetectors, integrated photonic circuits, photonic crystals, specialty fibers, polarization-mode dispersion, electronic signal processing, MEMS, nonlinear optical signal processing, and quantum information technologies. Volume (B) is devoted to systems and networks, including: advanced modulation formats, coherent systems, time-multiplexed systems, performance monitoring, reconfigurable add-drop multiplexers, Ethernet technologies, broadband access and services, metro networks, long-haul transmission, optical switching, microwave photonics, computer interconnections, and simulation tools. Biographical Sketches Ivan Kaminow retired from Bell Labs in 1996 after a 42-year career. He conducted seminal studies on electrooptic modulators and materials, Raman scattering in ferroelectrics, integrated optics, semiconductor lasers (DBR , ridge-waveguide InGaAsP and multi-frequency), birefringent optical fibers, and WDM networks. Later, he led research on WDM components (EDFAs, AWGs and fiber Fabry-Perot Filters), and on WDM local and wide area networks. He is a member of the National Academy of Engineering and a recipient of the IEEE/OSA John Tyndall, OSA Charles Townes and IEEE/LEOS Quantum Electronics Awards. Since 2004, he has been Adjunct Professor of Electrical Engineering at the University of California, Berkeley. Tingye Li retired from AT&T in 1998 after a 41-year career at Bell Labs and AT&T Labs. His seminal work on laser resonator modes is considered a classic. Since the late 1960s, He and his groups have conducted pioneering studies on lightwave technologies and systems. He led the work on amplified WDM transmission systems and championed their deployment for upgrading network capacity. He is a member of the National Academy of Engineering and a foreign member of the Chinese Academy of Engineering. He is a recipient of the IEEE David Sarnoff Award, IEEE/OSA John Tyndall Award, OSA Ives Medal/Quinn Endowment, AT&T Science and Technology Medal, and IEEE Photonics Award. Alan Willner has worked at AT&T Bell Labs and Bellcore, and he is Professor of Electrical Engineering at the University of Southern California. He received the NSF Presidential Faculty Fellows Award from the White House, Packard Foundation Fellowship, NSF National Young Investigator Award, Fulbright Foundation Senior Scholar, IEEE LEOS Distinguished Lecturer, and USC University-Wide Award for Excellence in Teaching. He is a Fellow of IEEE and OSA, and he has been President of the IEEE LEOS, Editor-in-Chief of the IEEE/OSA J. of Lightwave Technology, Editor-in-Chief of Optics Letters, Co-Chair of the OSA Science & Engineering Council, and General Co-Chair of the Conference on Lasers and Electro-Optics.

An Algebraic Approach of Optical Performance Monitoring in All optical Networks

An Algebraic Approach of Optical Performance Monitoring in All optical Networks
Author: Siu Ting Ho
Publsiher: Unknown
Total Pages: 176
Release: 2005
ISBN 10: 1928374650XXX
ISBN 13: OCLC:151823887
Language: EN, FR, DE, ES & NL

An Algebraic Approach of Optical Performance Monitoring in All optical Networks Book Review:

Optical Network Design and Modeling

Optical Network Design and Modeling
Author: Ioannis Tomkos,Fabio Neri,Josep Solé-Pareta,Xavier Masip-Bruin,Sergi Sánchez-López
Publsiher: Springer
Total Pages: 460
Release: 2007-07-21
ISBN 10: 3540727310
ISBN 13: 9783540727316
Language: EN, FR, DE, ES & NL

Optical Network Design and Modeling Book Review:

This book constitutes the refereed proceedings of the 11th International IFIP-TC6 Conference on Optical Network Design and Modeling, ONDM 2007, held in Athens, Greece, in May 2007. The 41 revised full papers presented together with 14 invited papers address all recent advances in the design, modeling and implementation of optical networks.

Enabling Technologies for High Spectral efficiency Coherent Optical Communication Networks

Enabling Technologies for High Spectral efficiency Coherent Optical Communication Networks
Author: Xiang Zhou,Chongjin Xie
Publsiher: John Wiley & Sons
Total Pages: 648
Release: 2016-04-11
ISBN 10: 1118714768
ISBN 13: 9781118714768
Language: EN, FR, DE, ES & NL

Enabling Technologies for High Spectral efficiency Coherent Optical Communication Networks Book Review:

Presents the technological advancements that enable high spectral-efficiency and high-capacity fiber-optic communication systems and networks This book examines key technology advances in high spectral-efficiency fiber-optic communication systems and networks, enabled by the use of coherent detection and digital signal processing (DSP). The first of this book’s 16 chapters is a detailed introduction. Chapter 2 reviews the modulation formats, while Chapter 3 focuses on detection and error correction technologies for coherent optical communication systems. Chapters 4 and 5 are devoted to Nyquist-WDM and orthogonal frequency-division multiplexing (OFDM). In chapter 6, polarization and nonlinear impairments in coherent optical communication systems are discussed. The fiber nonlinear effects in a non-dispersion-managed system are covered in chapter 7. Chapter 8 describes linear impairment equalization and Chapter 9 discusses various nonlinear mitigation techniques. Signal synchronization is covered in Chapters 10 and 11. Chapter 12 describes the main constraints put on the DSP algorithms by the hardware structure. Chapter 13 addresses the fundamental concepts and recent progress of photonic integration. Optical performance monitoring and elastic optical network technology are the subjects of Chapters 14 and 15. Finally, Chapter 16 discusses spatial-division multiplexing and MIMO processing technology, a potential solution to solve the capacity limit of single-mode fibers. • Contains basic theories and up-to-date technology advancements in each chapter • Describes how capacity-approaching coding schemes based on low-density parity check (LDPC) and spatially coupled LDPC codes can be constructed by combining iterative demodulation and decoding • Demonstrates that fiber nonlinearities can be accurately described by some analytical models, such as GN-EGN model • Presents impairment equalization and mitigation techniques Enabling Technologies for High Spectral-efficiency Coherent Optical Communication Networks is a reference for researchers, engineers, and graduate students. Xiang Zhou is a Tech Lead within Google Platform Advanced Technology. Before joining Google, he was with AT&T Labs, conducting research on various aspects of optical transmission and photonics networking technologies. Dr. Zhou is an OSA fellow and an associate editor for Optics Express. He has extensive publications in the field of optical communications. Chongjin Xie is a senior director at Ali Infrastructure Service, Alibaba Group. Before joining Alibaba Group, he was a Distinguished Member of Technical Staff at Bell Labs, Alcatel-Lucent. Dr. Xie is a fellow of OSA and senior member of IEEE. He is an associate editor of the Journal of Lightwave Technology and has served in various conference committees.

True time All Optical Performance Monitoring by Means of Optical Correlation

True time All Optical Performance Monitoring by Means of Optical Correlation
Author: Feras M. Abou-Galala
Publsiher: Unknown
Total Pages: 158
Release: 2007
ISBN 10: 9781109984255
ISBN 13: 1109984251
Language: EN, FR, DE, ES & NL

True time All Optical Performance Monitoring by Means of Optical Correlation Book Review:

In this dissertation we present a new design of an optical performance monitor (OPM) that utilizes optical correlation techniques to produce real-time measurements of optical link performance. We also introduce a novel design of temporal optical correlator that is based on the White cell. We show the advantages of our method over existing techniques and outline how our proposed device can be integrated in next generation all-optical Internet networks.

Optical Performance Monitoring for Amplified Spontaneous Emission Related Issues in Transparent Optical Networks

Optical Performance Monitoring for Amplified Spontaneous Emission Related Issues in Transparent Optical Networks
Author: Michal Pawel Dlubek
Publsiher: Unknown
Total Pages: 420
Release: 2009
ISBN 10: 1928374650XXX
ISBN 13: OCLC:1252137689
Language: EN, FR, DE, ES & NL

Optical Performance Monitoring for Amplified Spontaneous Emission Related Issues in Transparent Optical Networks Book Review:

Understanding Fiber Optics

Understanding Fiber Optics
Author: Jeff Hecht
Publsiher: Jeff Hecht
Total Pages: 800
Release: 2015-03-31
ISBN 10: 1511445653
ISBN 13: 9781511445658
Language: EN, FR, DE, ES & NL

Understanding Fiber Optics Book Review:

A tutorial introduction to fiber optics, which explains fundamental concepts of fiber optics, components and systems with minimal math. With more than 100,000 copies in print, Understanding Fiber Optics has been widely used in the classroom, for self study, and in corporate training since the first edition was published in 1987. This is a reprint of the 5th edition, originally published by Pearson Education and now available at low cost from Laser Light Press.

Fiber Optic Measurement Techniques

Fiber Optic Measurement Techniques
Author: Rongqing Hui,Maurice O'Sullivan
Publsiher: Academic Press
Total Pages: 672
Release: 2009-01-21
ISBN 10: 9780080920436
ISBN 13: 0080920438
Language: EN, FR, DE, ES & NL

Fiber Optic Measurement Techniques Book Review:

Fiber Optic Measurement Techniques is an indispensable collection of key optical measurement techniques essential for developing and characterizing today’s photonic devices and fiber optic systems. The book gives comprehensive and systematic descriptions of various fiber optic measurement methods with the emphasis on the understanding of optoelectronic signal processing methodologies, helping the reader to weigh up the pros and cons of each technique and establish their suitability for the task at hand. Carefully balancing descriptions of principle, operations and optoelectronic circuit implementation, this indispensable resource will enable the engineer to: Understand the implications of various measurement results and system performance qualifications Characterize modern optical systems and devices Select optical devices and subsystems in optical network design and implementation Design innovative instrumentations for fiber optic systems This book brings together in one volume the fundamental principles with the latest techniques, making it a complete resource for the optical and communications engineer developing future optical devices and fiber optic systems. "Optical fiber communication systems and networks constitute the core of the telecom infrastructure of the information society worldwide. Accurate knowledge of the properties of the contituent components, and of the performance of the subsystems and systems must be obtained in order to ensure reliable transmission, distribution, and delivery of information. This book is an authoritative and comprehensive treatment of fiber-optic measurement techniques, including not only fundamental principles and methodologies but also various instrumentations and practical implementations. It is an excellent up-to-date resource and reference for the academic and industrial researcher as well as the field engineer in manufacturing and network operations." –Dr. Tingye Li, AT&T Labs (retired) Rongqing Hui received his PhD in Electrical Engineering from Politecnico di Torino, Italy in 1993. He is currently a tenured professor in the department of Electrical Engineering and Computer Science at the University of Kansas. He has published more than 90 refereed technical papers in the area of fiber-optic communications and holds 13 patents. Dr. Hui currently serves as an Associate Editor of IEEE Transactions on Communications. Maurice O'Sullivan has worked for Nortel for a score of years, at first in the optical cable business, developing factory-tailored metrology for optical fiber, but, in the main, in the optical transmission business developing, modeling and verifying physical layer designs & performance of Nortel's line and highest rate transmission product including OC-192, MOR, MOR+, LH1600G, eDCO and eDC40G. He holds a Ph.D. in physics (high resolution spectroscopy) from the University of Toronto, is a Nortel Fellow and has been granted more than 30 patents. The only book to combine explanations of the basic principles with latest techniques to enable the engineer to develop photonic systems of the future Careful and systematic presentation of measurement methods to help engineers to choose the most appropriate for their application The latest methods covered, such as real-time optical monitoring and phase coded systems and subsystems, making this the most up-to-date guide to fiber optic measurement on the market

Planar Waveguide Based Optical Performance Monitoring Techniques and Their Applications in All optical Networks

Planar Waveguide Based Optical Performance Monitoring Techniques and Their Applications in All optical Networks
Author: Shan Zhong
Publsiher: Unknown
Total Pages: 260
Release: 2001
ISBN 10: 1928374650XXX
ISBN 13: OCLC:51009927
Language: EN, FR, DE, ES & NL

Planar Waveguide Based Optical Performance Monitoring Techniques and Their Applications in All optical Networks Book Review:

Optical Transmission

Optical Transmission
Author: António Teixeira,giorgio maria tosi beleffi
Publsiher: Springer Science & Business Media
Total Pages: 284
Release: 2011-11-02
ISBN 10: 9789400717671
ISBN 13: 9400717679
Language: EN, FR, DE, ES & NL

Optical Transmission Book Review:

Optical Transmission represents a wide set of visions of researchers who are active in the actual research scene in Europe. An aggregate of highlights of research in transmission with a state of the art presented by the researchers who are driving it are presented. The trends on research are in this book presented by one of the widest networks of excellence put together in Europe in the field of optical networking (more than 40 Research institutions were involved). The readers will find a specialized readout of the current trends and status of transmission ranging from simulation to ultimate experimental results, from modulations to devices. A highlight of Optical Transmission is the introduction in a technical book a chapter on techno-economics, which drives the vision and field a little further. General reading could be made however is more suited for graduated users. The most important features of Optical Transmission are: wide vision on transmission related issues, state of the art and related trends and techniques; techno-economics of the field.

Passive Optical Networks

Passive Optical Networks
Author: Cedric F. Lam
Publsiher: Elsevier
Total Pages: 368
Release: 2011-10-10
ISBN 10: 9780080553450
ISBN 13: 0080553451
Language: EN, FR, DE, ES & NL

Passive Optical Networks Book Review:

Passive optical network (PON) technologies have become an important broadband access technology as a result of the growing demand for bandwidth-hungry video-on-demand applications. Written by the leading researchers and industry experts in the field, Passive Optical Networks provides coherent coverage of networking technologies, fiber optic transmission technologies, as well as the electronics involved in PON system development. Features: An in-depth overview of PON technologies and the potential applications that they enable Comprehensive review of all major PON standards and architecture evolutions, as well as their pros and cons Balanced coverage of recent research findings with economic and engineering considerations Presents system issues of protocols, performance, management and protection Extensive references to standards and research materials for further studies This book provides an authoritative overview of PON technologies and system requirements and is ideal for engineers and managers in industry, university researchers, and graduate students. Balances treatment of the optical technologies with systems issues such as protocols, performance, management and protection Covers latest developments in WDM-PONS, protection switching, dynamic bandwidth allocation Practical coverage with a chapter on PON applications and deployment Case studies on implementing PONs

Progress in Optical Fibers Research

Progress in Optical Fibers Research
Author: Zhijian Guo
Publsiher: Nova Publishers
Total Pages: 419
Release: 2007
ISBN 10: 9781600218682
ISBN 13: 1600218687
Language: EN, FR, DE, ES & NL

Progress in Optical Fibers Research Book Review:

This book presents new and important research on optical fibres. An optical fibre is a glass or plastic fibre designed to guide light along its length by confining as much light as possible in a propagating form. In fibres with large core diameter, the confinement is based on total internal reflection. In smaller diameter core fibres, (widely used for most communication links longer than 200 meters) the confinement relies on establishing a waveguide. Fibre optics is the overlap of applied science and engineering concerned with such optical fibres. Optical fibres are widely used in fibre-optic communication, which permits transmission over longer distances and at higher data rates than other forms of wired and wireless communications. They are also used to form sensors, and in a variety of other applications. The term optical fibre covers a range of different designs including graded-index optical fibres, step-index optical fibres, birefringent polarisation-maintaining fibres and more recently photonic crystal fibres, with the design and the wavelength of the light propagating in the fiber dictating whether or not it will be multi-mode optical fibre or single-mode optical fibre. Because of the mechanical properties of the more common glass optical fibres, special methods of splicing fibres and of connecting them to other equipment are needed. Manufacture of optical fibres is based on partially melting a chemically doped preform and pulling the flowing material on a draw tower. Fibers are built into different kinds of cables depending on how they will be used.

Optical Performance Monitoring for Next Generation Coherent Optical Communication Systems

Optical Performance Monitoring for Next Generation Coherent Optical Communication Systems
Author: Shunrong Shen,Hong Kong Polytechnic University. Department of Electrical Engineering
Publsiher: Unknown
Total Pages: 97
Release: 2011
ISBN 10: 1928374650XXX
ISBN 13: OCLC:773150424
Language: EN, FR, DE, ES & NL

Optical Performance Monitoring for Next Generation Coherent Optical Communication Systems Book Review:

Machine Learning for Future Fiber Optic Communication Systems

Machine Learning for Future Fiber Optic Communication Systems
Author: Alan Pak Tao Lau,Faisal Nadeem Khan
Publsiher: Academic Press
Total Pages: 402
Release: 2022-03-02
ISBN 10: 0323852289
ISBN 13: 9780323852289
Language: EN, FR, DE, ES & NL

Machine Learning for Future Fiber Optic Communication Systems Book Review:

Machine Learning for Future Fiber-Optic Communication Systems provides a comprehensive and in-depth treatment of machine learning concepts and techniques applied to key areas within optical communications and networking, reflecting the state-of-the-art research and industrial practices. The book gives knowledge and insights into the role machine learning-based mechanisms will soon play in the future realization of intelligent optical network infrastructures that can manage and monitor themselves, diagnose and resolve problems, and provide intelligent and efficient services to the end users. With up-to-date coverage and extensive treatment of various important topics related to machine learning for fiber-optic communication systems, this book is an invaluable reference for photonics researchers and engineers. It is also a very suitable text for graduate students interested in ML-based signal processing and networking. Discusses the reasons behind the recent popularity of machine learning (ML) concepts in modern optical communication networks and the why/where/how ML can play a unique role Presents fundamental ML techniques like artificial neural networks (ANNs), support vector machines (SVMs), K-means clustering, expectation-maximization (EM) algorithm, principal component analysis (PCA), independent component analysis (ICA), reinforcement learning, and more Covers advanced deep learning (DL) methods such as deep neural networks (DNNs), convolutional neural networks (CNNs), recurrent neural networks (RNNs), and generative adversarial networks (GANs) Individual chapters focus on ML applications in key areas of optical communications and networking

An Optimal and Cost Effective Optical Performance Monitoring OPM Methodology for an All optical Wavelength Routed Meshed Network

An Optimal and Cost Effective Optical Performance Monitoring  OPM  Methodology for an All optical Wavelength Routed Meshed Network
Author: Joseph Alphonse Raoul Dorleus
Publsiher: Unknown
Total Pages: 88
Release: 2005
ISBN 10: 1928374650XXX
ISBN 13: OCLC:70171258
Language: EN, FR, DE, ES & NL

An Optimal and Cost Effective Optical Performance Monitoring OPM Methodology for an All optical Wavelength Routed Meshed Network Book Review:

Optical Fiber Telecommunications VA

Optical Fiber Telecommunications VA
Author: Tingye Li,Alan E. Willner,Ivan Kaminow
Publsiher: Elsevier
Total Pages: 944
Release: 2010-07-28
ISBN 10: 0080569617
ISBN 13: 9780080569611
Language: EN, FR, DE, ES & NL

Optical Fiber Telecommunications VA Book Review:

Optical Fiber Telecommunications V (A&B) is the fifth in a series that has chronicled the progress in the research and development of lightwave communications since the early 1970s. Written by active authorities from academia and industry, this edition not only brings a fresh look to many essential topics but also focuses on network management and services. Using high bandwidth in a cost-effective manner for the development of customer applications is a central theme. This book is ideal for R&D engineers and managers, optical systems implementers, university researchers and students, network operators, and the investment community. Volume (A) is devoted to components and subsystems, including: semiconductor lasers, modulators, photodetectors, integrated photonic circuits, photonic crystals, specialty fibers, polarization-mode dispersion, electronic signal processing, MEMS, nonlinear optical signal processing, and quantum information technologies. Volume (B) is devoted to systems and networks, including: advanced modulation formats, coherent systems, time-multiplexed systems, performance monitoring, reconfigurable add-drop multiplexers, Ethernet technologies, broadband access and services, metro networks, long-haul transmission, optical switching, microwave photonics, computer interconnections, and simulation tools. Biographical Sketches Ivan Kaminow retired from Bell Labs in 1996 after a 42-year career. He conducted seminal studies on electrooptic modulators and materials, Raman scattering in ferroelectrics, integrated optics, semiconductor lasers (DBR , ridge-waveguide InGaAsP and multi-frequency), birefringent optical fibers, and WDM networks. Later, he led research on WDM components (EDFAs, AWGs and fiber Fabry-Perot Filters), and on WDM local and wide area networks. He is a member of the National Academy of Engineering and a recipient of the IEEE/OSA John Tyndall, OSA Charles Townes and IEEE/LEOS Quantum Electronics Awards. Since 2004, he has been Adjunct Professor of Electrical Engineering at the University of California, Berkeley. Tingye Li retired from AT&T in 1998 after a 41-year career at Bell Labs and AT&T Labs. His seminal work on laser resonator modes is considered a classic. Since the late 1960s, He and his groups have conducted pioneering studies on lightwave technologies and systems. He led the work on amplified WDM transmission systems and championed their deployment for upgrading network capacity. He is a member of the National Academy of Engineering and a foreign member of the Chinese Academy of Engineering. He is a recipient of the IEEE David Sarnoff Award, IEEE/OSA John Tyndall Award, OSA Ives Medal/Quinn Endowment, AT&T Science and Technology Medal, and IEEE Photonics Award. Alan Willner has worked at AT&T Bell Labs and Bellcore, and he is Professor of Electrical Engineering at the University of Southern California. He received the NSF Presidential Faculty Fellows Award from the White House, Packard Foundation Fellowship, NSF National Young Investigator Award, Fulbright Foundation Senior Scholar, IEEE LEOS Distinguished Lecturer, and USC University-Wide Award for Excellence in Teaching. He is a Fellow of IEEE and OSA, and he has been President of the IEEE LEOS, Editor-in-Chief of the IEEE/OSA J. of Lightwave Technology, Editor-in-Chief of Optics Letters, Co-Chair of the OSA Science & Engineering Council, and General Co-Chair of the Conference on Lasers and Electro-Optics.

Multi impairment and Multi channel Optical Performance Monitoring

Multi impairment and Multi channel Optical Performance Monitoring
Author: L. Meflah
Publsiher: Unknown
Total Pages: 135
Release: 2008
ISBN 10: 1928374650XXX
ISBN 13: OCLC:829958331
Language: EN, FR, DE, ES & NL

Multi impairment and Multi channel Optical Performance Monitoring Book Review:

Next generation optical networks will evolve from static to dynamically reconfigurable architectures to meet the increasing bandwidth and service requirements. The benefits of dynamically reconfigurable networks (improved operations, reduced footprint and cost) have introduced new challenges, in particular the need for complex management which has put pressure on the engineering rules and transmission margins. This has provided the main drive to develop new techniques for optical performance monitoring (OPM) without using optical-to-electrical-to-optical conversions. When considering impairments due to chromatic dispersion in dynamic networks, each channel will traverse a unique path through the network thus the channels arriving at the monitoring point will, in general, exhibit different amounts of residual dispersion. Therefore, in a dynamic network it is necessary to monitor all channels individually to quantify the degradation, without the requirement of knowing the data path history. The monitoring feature can be used in conjunction with a dispersion compensation device which can either be optical or electrical or used to trigger real-time alarms for traffic re-routing. The proposed OPM technique is based on RF spectrum analysis and used for simultaneous and independent monitoring of power, chromatic dispersion (CD), polarisation mode dispersion (PMD) and optical signal-to-noise ratio (OSNR) in 40Gbit/s multi0channel systems. An analytical model is developed to describe the monitoring technique which allows the prediction of the measurement range. The experimental results are given for group velocity dispersion (GVD), differential group delay (DGD) and OSNR measurements. This technique is based on electro-optic down-conversion that simultaneously down-converts multiple channels, sharing the cost of the key components over multiple channels and making it cost effective for multi-channel operation. The measurement range achieved with this method is equal to 4742±100ps/nm for GVD, 200±4ps for DGD and 25±1dB for OSNR. To the knowledge of the author, these dispersion monitoring ranges are the largest reported to date for the bit-rate of 40Gbit/s with amplitude modulation formats.

Improving Optical Performance Monitoring with Signal Processing

Improving Optical Performance Monitoring with Signal Processing
Author: Mei Li
Publsiher: Unknown
Total Pages: 376
Release: 2008
ISBN 10: 1928374650XXX
ISBN 13: OCLC:299122918
Language: EN, FR, DE, ES & NL

Improving Optical Performance Monitoring with Signal Processing Book Review:

Optics for AI and AI for Optics

Optics for AI and AI for Optics
Author: Jinlong Wei,Alan Pak Tao Lau,Lilin Yi,Elias Giacoumidis,Qixiang Cheng
Publsiher: MDPI
Total Pages: 162
Release: 2020-06-23
ISBN 10: 3039363980
ISBN 13: 9783039363988
Language: EN, FR, DE, ES & NL

Optics for AI and AI for Optics Book Review:

Artificial intelligence is deeply involved in our daily lives via reinforcing the digital transformation of modern economies and infrastructure. It relies on powerful computing clusters, which face bottlenecks of power consumption for both data transmission and intensive computing. Meanwhile, optics (especially optical communications, which underpin today’s telecommunications) is penetrating short-reach connections down to the chip level, thus meeting with AI technology and creating numerous opportunities. This book is about the marriage of optics and AI and how each part can benefit from the other. Optics facilitates on-chip neural networks based on fast optical computing and energy-efficient interconnects and communications. On the other hand, AI enables efficient tools to address the challenges of today’s optical communication networks, which behave in an increasingly complex manner. The book collects contributions from pioneering researchers from both academy and industry to discuss the challenges and solutions in each of the respective fields.